Patents by Inventor Masaji Murase

Masaji Murase has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4972468
    Abstract: Several embodiments of transceivers including an earphone and a microphone carried by a mounting device that is adapted to be mounted on the ear of the user. The mounting device resiliently biases the earphone into engagement with the auditory canal of the user so as to improve sound transmission. A number of arrangements of mounting of the microphone and shielding from noise are shown and described.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: November 20, 1990
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Masaji Murase, Saburo Ito